What is the weather like in Hong Kong vs Sydney in September?

In September, Hong Kong averages 31°C high / 26°C low with about 262 mm of rain; Sydney averages 20°C high / 13°C low with about 73 mm.

Hong Kong vs Sydney in September

Sydney is the better pick in September — 89 vs 47 on SeasonMap's comfort score. Sydney is nice, a little rain, clean air, while Hong Kong is sweltering, soaked, muggy air.

Hong Kong vs Sydney — September climate, side by side

	🇭🇰 Hong Kong	🇦🇺 Sydney
Comfort score	47/100 (F)	89/100 (A)
Feels-like high	37°C	19°C
Avg high / low	31° / 26°	20° / 13°
Rainfall	262 mm	73 mm
Rainy days	20	7
Humidity	84%	66%
Air quality (AQI)	84	45

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Hong Kong vs Sydney in September — FAQ

Is September better in Hong Kong or Sydney?: Sydney is the better pick in September — 89 vs 47 on SeasonMap's comfort score. Sydney is nice, a little rain, clean air, while Hong Kong is sweltering, soaked, muggy air.
What is the weather like in Hong Kong vs Sydney in September?: In September, Hong Kong averages 31°C high / 26°C low with about 262 mm of rain; Sydney averages 20°C high / 13°C low with about 73 mm.